When I fill text field (enter texts in Avant Browser) on some keys (I have polish Windows: AltGr+s, AltGr+e, AltGr+c, AltGr+n, AltGr+l, AltGr+S, AltGr+E, AltGr+C, AltGr+N, AltGr+L) appear strange message boxes. This is an Avant error because in other browsers like Firefox or Chrome all is correct (also in editors). How can I switch off ?
I add screen captures with thees boxes.

AltGr key mean right Alt. In my computer named AltGr but in other computers it named Alt. I have on other application but my system is polish version and keys AltGr-a, AltGr-s and so on use for write special polish characters (polish programers keyboard). In other applications it work correctly, only in Avant appears this message boxes.